Search a number
-
+
2028277158 = 231392431987
BaseRepresentation
bin111100011100101…
…0000110110100110
312020100120011012020
41320321100312212
513123214332113
6533133004010
7101156033325
oct17071206646
95210504166
102028277158
11950a00716
12487323606
132642980cb
1415353a0bc
15bd0eb023
hex78e50da6

2028277158 has 16 divisors (see below), whose sum is σ = 4085739840. Its totient is φ = 671228136.

The previous prime is 2028277117. The next prime is 2028277169. The reversal of 2028277158 is 8517728202.

It is a super-2 number, since 2×20282771582 = 8227816459329113928, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1215160 + ... + 1216827.

It is an arithmetic number, because the mean of its divisors is an integer number (255358740).

Almost surely, 22028277158 is an apocalyptic number.

2028277158 is an abundant number, since it is smaller than the sum of its proper divisors (2057462682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2028277158 is a wasteful number, since it uses less digits than its factorization.

2028277158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2432131.

The product of its (nonzero) digits is 125440, while the sum is 42.

The square root of 2028277158 is about 45036.3981463882. The cubic root of 2028277158 is about 1265.8311145879.

The spelling of 2028277158 in words is "two billion, twenty-eight million, two hundred seventy-seven thousand, one hundred fifty-eight".

Divisors: 1 2 3 6 139 278 417 834 2431987 4863974 7295961 14591922 338046193 676092386 1014138579 2028277158